"Class is not licensed for use"

[Tiffiny]

Hi Everyone,

I'm trying to develop a device plug-in , which will instantiate
the device specific dll and load in to the system.as example
I have barcode device and I wrote the wrapper class for the vendor specific
dll with the device specific configuration.T hen in the device registering
program[part of my application] will read the those dll in specific folder
and then create the instances of each dll file in the given folder as given
below.

newDevice.Insta nce =
(IDevice)Activa tor.CreateInsta nce(DeviceAssem bly.GetType(Dev iceType.ToStrin g
()));

Here IDevice is Interface that use for all device.

But following exception has thrown when trying to execute above line.

" Exception has been thrown by the target of an invocation."

When I check the message of inner exception of the above exception , it says

"Class is not licensed for use "

When I went further I found that exception actually thrown by the following
code line

MSCommLib.MSCom mClass mPort=new MSCommLib.MSCom mClass();
I did my best to figureout this.So if anyone tell me what should I do to
overcome this.

I'm using

MS Windows 2000 Server
..NET Framework 1.1
msomm32.ocx [ version 6.0.81.69]
Any Ideas ?

----------------------
Sumeda Herath

[Dan Neely]

"Tiffiny" wrote:

Hi Everyone,

I'm trying to develop a device plug-in , which will instantiate
the device specific dll and load in to the system.as example
I have barcode device and I wrote the wrapper class for the vendor specific
dll with the device specific configuration.T hen in the device registering
program[part of my application] will read the those dll in specific folder
and then create the instances of each dll file in the given folder as given
below.

It sounds like you need to pay the 3rd party to use their dll. if you've
already done so, there's a problem with thier licencing setup and you should
contact their support people to resolve the issue.

[Tiffiny]

Hi Dan,
Thank you very much for ur valuable time.But the exception thrown
by the following line of code within the wrapper class.

MSCommLib.MSCom mClass mPort=new MSCommLib.MSCom mClass();

This is COM component and it's appear to be it's not registered well.So that
the License information of that is not in the registery.I used
regsvr32 command to register it.But I'm not sure that it is the correct way
to do it. Is there any other specific way to register COM component
in local system ?

Thank you ,

Sumeda Herath
"Dan Neely" <Da******@discu ssions.microsof t.com> wrote in message
news:8D******** *************** ***********@mic rosoft.com...

"Tiffiny" wrote:

Hi Everyone,

I'm trying to develop a device plug-in , which will instantiate the device specific dll and load in to the system.as example
I have barcode device and I wrote the wrapper class for the vendor specific dll with the device specific configuration.T hen in the device registering program[part of my application] will read the those dll in specific folder and then create the instances of each dll file in the given folder as given below.
It sounds like you need to pay the 3rd party to use their dll. if you've
already done so, there's a problem with thier licencing setup and you

should contact their support people to resolve the issue.